re-instate required attr check
re-instate required attr check

joelbyler/flight,icecreamliker/flight,flightjs/flight,giuseppeg/flight,KyawNaingTun/flight,robertknight/flight,margaritis/flight,robertknight/flight,Shinchy/flight,Shinchy/flight,KyawNaingTun/flight,david84/flight,joelbyler/flight,david84/flight,icecreamliker/flight,flightjs/flight